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Service Areas

GSO offers overnight delivery to every address in California and select regions of Western Nevada and Arizona.

The Nevada service area includes the metropolitan areas of Reno and Las Vegas.

The Arizona service area includes the metropolitan areas of Phoenix, Tucson and Flagstaff.

Please consult area time zone standards to determine service availability and guarantees for specific zip codes.

Please Note: GSO does not deliver to Post Office Box addresses.

GSO offers Priority Overnight Delivery to every address in California and select regions of Western Nevada and Arizona.

GSO Service Areas

Priority Overnight Delivery Guaranteed by 10:30 a.m.